Box-pressing machine.



No. 650,|46. Patented May 22, I900.

' C. CBISTADORO.

BOX PRESSING MACHINE.

(Application filed Kay 5, 1894 (No Model.) 2 $heets-Shee l.

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UNITED STATES- PATENT QFFICE.

CHARLES CRISTADORO, OF ST. PAUL, MINNESOTA.

BOX-PRESSING MACHINE.

SPECIFICATION forming part of Letters Patent No. 650,146, dated May 22,1900. Application filed May 5, 1894- lSerial No. 510,136. (No model.)

To all whom, it may concerns Be it known that 1, CHARLES CRISTADORO, ofSt. Paul, Ramsey county, Minnesota, have invented certain Improvements.in Box-Pressing Machines, of which the following is a specification.

My invention relates to improvements in box-pressin g machines, socalled, its object being to provide improved means for holding thepieces of the box in proper position and alinement for being closedtogether; and to this end it consists in providing spring-clamps forengaging and pressing the box-pieces against the stops for holding themin position, and in also providing spring-clips for engaging the ends ofthe side pieces to hold them from longitudinal displacement, and inproviding suitable pressure-plates or other supports for the mortisedends of the side pieces to prevent breaking of the portions between themortises when the tenons on the end pieces are forced into the same.

My invention further consists in the construction and combinationhereinafter particularly described and claimed.

In the accompanying drawings, forming part of this specification, Figure1 is a plan View of my improved machine. Fig. 2 is a side elevation ofthe same. Fig. 3 is an inside elevation of a portion of one of thepressure-plates. Fig. 4 is an end elevation of the same having theportions of a side and end of a box as they would appear before beingpressed together, and Figs. 5 and 6 are an end elevation and plan viewof one of the end spring-clamps.

In the drawings, 2 represents the frame of the machine, having thetransverse tracks or guides 3 and the similar longitudinal tracks orguides 4, on which slide the side and end carriages 5 and 6, as drivenby power suitably applied thereto for closing together the box-pieces.Upon the transverse and longitudinal guides or tracks 7 and 8 in thetops of the carriages 5 and 6 are mounted the side and end box-pieceholders 9 and 10, adjusted to the length of said pieces by the screwsand hand-wheels 11 and 12. The holders 9 are provided with vertical endposts 13 for supporting the side box-pieces l4: and holding them fromoutward displacement. Similar posts 15 are arranged upon the holders 10for supporting the box end pieces 16. These pairs of posts are arrangedwith their inner faces exactly parallel, so as to hold the pieces 14 and16 of the box in a quadrilateral position, and on the inside of eachpair of posts, and preferably midway between them, are the posts 17,which are provided with springclamps 18, having their tops 19 slightlyoutturned, so that the box-pieces may-be guided 3 down between the postsand there held against the outer posts by the pressure of the springs.The end pieces 16 have their ends formed with tenons 20, while the sidepieces 14: have corresponding mortises 21 in their ends to relOGlVG thetenons. It is therefore necessary that the mortises in the ends of theside pieces 14 shall be exactly in line with the corresponding tenons,so that the tenons can exactly enter them. To accomplish this, 1 arrangeon the posts 13 the spring-clips 22,which are so arranged as to engagethe ends of the side pieces when in position and hold them exactly inline with the end pieces.

In order to support the portions 23 between the mortises 21 on the endsof the side pieces to prevent their being broken or enlarged by thetenons 20 on the end pieces 16, Iarrange on the posts 13 thepressure-plates 24, having notches 25 and intermediate portions 26,corresponding to the mortises 21 and portions 23 of the side pieces.These plates are preferably held in place on the post by means ofdovetail ribs 27, fitting in corresponding vertical grooves in the posts13. This makes it possible to remove a pressure-plate and substituteanother of different-sized mortises or notches to suit different classesof work.

In operation an opposite pair of box-piece holders are arranged inexactly proper posi-.

tion for the length of the box to be formed and the second pair ofholders are arranged in position to receWe the pieces which stand justbeyond or outside of the ends of the other pieces. (See Fig. 1.) Theholders being in this position, the end and side pieces are placedtherein and held by the spring-clamps. That pair of the carriages theholders on which support the box-pieces having mortises in their endsare then driven in either by handwheels or other suitable power, (notshown,) causing the tenons upon the end pieces to enter the mortises inthe side pieces and the 2. In a box-pressing machine, the combina tionwith the clamping. device, .of the stand- I 5 ards carried thereby andserving as outer supports for the ends of the box-pieces,thespringfingers adapted to bear upon the inner face of said box-pieces,the spring-clips engaging the ends of the mortised pieces, the standardsfor said mortised pieces being correspondingly mortise d whereby thewalls between the mortises thereof serve as supports for the portionsbetween the mortises of the box-piece.

combination with the pair of oppositely-arpieces of stock,thestock-supporting standards, and the spring-clips secured to andparfially surrounding said standards, standing with their faces in linewith the stock-pieces in the fixed clamps, and adapted to bear upon theends of the stock-piece in the clamp whereby the mortises therein areguided into engagement with the tenons upon the other stock-pieces.

- 4:. In an apparatus of the class described,the combination of theadjustably-fixed clamps carrying the two opposite i tenoned stockpieces,and the traveling, oppositely-arranged I clampsadapted to carry themortised stockpieces, the stock-supporting standards upon saidlast-named clamps, vthe socketed faceplates upon said standardscorresponding ';with the mortises in the stock-piece, the 1spring-clipssecured to, and partly surround- ?ing said standards, andprojecting beyond the fixed clamps, and in line with the pieces carriedthereby, and adapted to bear upon the ends of the mortised stock-piece.

' 3. In a device of the class described, the E In testimony whereof I-aifix my signature in presence of two witnesses. ranged adjustably-fixedclamps adapted to I carry the tenoned pieces of stock, of the 5 7 pairof oppositely-arranged traveling clamps standing at right angles withthe first-named i clamps and adapted to carry the mortised 1 CHARLESCRISTADORO.

Witnesses:

T. D. MERWIN, H. S. JOHNSON.

